<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<html>
<style>
#a {
  width: 200px;
  height: 200px;
  background-color: rgb(0,255,0);
}
#b {
  width: 100px;
  height: 100px;
  mix-blend-mode:difference;
}
</style>
<div id="a">
<img src="as-image/green100x100.png" id="b"/>
</div>
</html>
